---
product_id: 1661556
title: "West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible"
brand: "west system"
price: "KSh11250"
currency: KES
in_stock: true
reviews_count: 13
category: "West System"
url: https://www.desertcart.co.ke/products/1661556-west-system-g-flex-650-epoxy-adhesive-2-x-4
store_origin: KE
region: Kenya
---

# Waterproof & underwater bonding Cold & damp surface adhesion 150,000 psi tensile strength West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible

**Brand:** west system
**Price:** KSh11250
**Availability:** ✅ In Stock

## Summary

> 🛠️ Bond Beyond Limits — Tough, Flexible, and Ready for Anything!

## Quick Answers

- **What is this?** West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible by west system
- **How much does it cost?** KSh11250 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/1661556-west-system-g-flex-650-epoxy-adhesive-2-x-4)

## Best For

- west system enthusiasts

## Why This Product

- Trusted west system brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Strength:** Delivers a powerful 150,000 psi tensile strength for permanent, toughened bonds.
- • **Flexible Durability:** Engineered to flex under stress, resisting cracks and bond failure where movement is expected.
- • **Multi-Material Mastery:** Reliable adhesion on fiberglass, metals, ceramics, plastics, and hard-to-bond woods.
- • **Marine-Grade Waterproofing:** Seamlessly bonds underwater and on wet surfaces—perfect for marine and outdoor repairs.
- • **Made in the USA with Precision:** Two-part epoxy system ensures consistent mixing and expert-backed performance every time.

## Overview

WEST SYSTEM G/flex 650 Epoxy Adhesive is a premium, toughened structural epoxy designed for demanding repairs. It offers exceptional tensile strength (150,000 psi), bonds reliably to challenging materials including damp and underwater surfaces, and features a flexible formulation that resists cracking under stress. Ideal for marine, cold weather, and multi-material applications, this two-part epoxy system is made in the USA and trusted by professionals for long-lasting, waterproof bonds.

## Description

WEST SYSTEM G/flex Epoxy (2- 4oz)

Review: Excellent product, performs exactly as described. - This is the best epoxy repair available. You need to clean the repair thoroughly. This has a long pot life and slow cure which makes for a more flexible repair. I've repaired boats and surfboards all my life. I've also done automotive part fabrication and repairs. This time I repaired a ceramic basin for a fountain. I cleaned and opened the crack. I used fiberglass chop into the fissure. I then overlaid fiberglass cloth over the entire bottom of the basin. Then I poured the epoxy mixture onto the repair area and used a plastic putty knife to work the epoxy in and the bubbles out. Last I vacuum bagged the repair to drive the epoxy deep into the fissure. Your have plenty of time to work with this product so don't rush. Make sure to thoroughly mix the two parts (epoxy and hardener) in equal parts, but don't mix so fast that you create bubbles in the mixture. I probably worked the repair for 15-20 minutes to get to where I wanted things When your finished, leave the repaired object alone for at least 24 hours to harden. After reading some reviews I was worried it may be sticky, it wasn't! The fountain basin is holding well with no leaks detected after several weeks. Don't use this product if you need a quick dry time!
Review: Great product! Very impressed! - This epoxy went above my expectations! Bonding mdf and stainless steel (building a router table). Plenty of working/adjustment time, and a pretty fast cure time! I tried others such as highly rated two ton epoxy (that delaminated in places and separated easily under mild heat). West systems 650 is holding up to mild heat, heavy vibration, pressure, and friction so far. Definitely will restock with a bigger supply when I run out, for any future needs.

## Features

- Toughened structural epoxy for permanent bonds – WEST SYSTEMG/flex 650 epoxy is a toughened, liquid structural epoxy resin designed for long-lasting, waterproof bonding in demanding repair and fabrication applications.
- Reliable adhesion to difficult materials – This G/flex epoxy bonds fiberglass, metals, ceramics, plastics, and hard-to-bond woods that often challenge conventional epoxy resin systems.
- Performs in marine and cold conditions – Adheres to damp wood and wet surfaces and can be applied underwater using proper techniques, making it well suited for marine epoxy repairs and cold weather epoxy use.
- Flexible formulation resists bond failure – Unlike rigid epoxy resin kits, G/flex epoxy allows controlled flex to improve peel strength and impact resistance where movement or vibration is expected.
- Complete epoxy and hardener system – Supplied as a two-part Made in the USA WEST SYSTEMepoxy resin and hardener, G/flex 650 delivers predictable mixing and performance backed by WEST SYSTEMtechnical expertise.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002IZFPQE |
| Best Sellers Rank | #6,821 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #7 in Wood Glue |
| Brand | West System |
| Brand Name | West System |
| Color | Clear |
| Compatible Material | Aluminum |
| Container Type | Bottle |
| Customer Reviews | 4.7 out of 5 stars 1,774 Reviews |
| Full Cure Time | 2 days |
| Global Trade Identification Number | 00811343012007 |
| Included Components | Epoxy |
| Item Form | Liquid |
| Item Highlight | Bond wood, metal, and fiberglass with lasting strength using this toughened, flexible marine-grade epoxy adhesive. |
| Item Package Quantity | 1 |
| Item Type Name | epoxy |
| Item Weight | 11.4 ounces |
| Manufacturer | WEST SYSTEM |
| Material | Epoxy |
| Material Type | Epoxy |
| Model | NRS G/flex Epoxy (2- 4oz) |
| Number of Pieces | 2 |
| Other Special Features of the Product | Bonds damp woods, Adheres to difficult-to-glue hardwoods, Wet surface bonding, Underwater bonding, Bonds to polyethylene and ABS plastics |
| Part Number | 2270 |
| Special Feature | Bonds damp woods, Adheres to difficult-to-glue hardwoods, Wet surface bonding, Underwater bonding, Bonds to polyethylene and ABS plastics Special Feature Bonds damp woods, Adheres to difficult-to-glue hardwoods, Wet surface bonding, Underwater bonding, Bonds to polyethylene and ABS plastics See more |
| Specific Uses For Product | Repair |
| Tensile Strength | 150000 psi |
| UPC | 782854071060 811343012007 780333610724 |
| Unit Count | 7.98 Fluid Ounces |
| Viscosity Level | Medium to High |
| Volume | 236 ml |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** West System
- **Item Form:** Liquid
- **Material:** Epoxy
- **Specific Uses For Product:** Repair

## Images

![West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible - Image 1](https://m.media-amazon.com/images/I/715RKL9qezL.jpg)
![West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible - Image 2](https://m.media-amazon.com/images/I/61FaWGK9vCL.jpg)
![West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible - Image 3](https://m.media-amazon.com/images/I/81X2hHRvhFL.jpg)
![West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible - Image 4](https://m.media-amazon.com/images/I/81qpiXnI9WL.jpg)
![West System G/Flex 650 Epoxy Adhesive, 2 x 4 oz | Toughened & Flexible - Image 5](https://m.media-amazon.com/images/I/91ZmF4QF0jL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What is the shelf life of this epoxy?**
A: Detailed information can be discovered by contacting West Systems technical staff at 866-937-8797 or via e:mail at tech-support@westsystem.com

**Q: How much does this 8 oz cover?  Approximately howmany rivets would this cover?**
A: This is a highly subjective question with a lot of variables. If used somewhat conservatively it will easil cover 100 + Rivets.

**Q: Is it somewhat rubbery or pretty firm after it cures?  Could anyone please describe it?**
A: it is not rubbery, it hardens to a very firm coat; how hard is dependent on your mix. it is flexible and holds together; however, less hardener the more flex with coverage. i have used it to gack bows, and it works well.

**Q: is this an 8 oz bottle of the resin and an 8 oz bottle of the hardener?**
A: It's 4 + 4 mate. 8 oz in total

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent product, performs exactly as described.
*by G***G on May 28, 2026*

This is the best epoxy repair available. You need to clean the repair thoroughly. This has a long pot life and slow cure which makes for a more flexible repair. I've repaired boats and surfboards all my life. I've also done automotive part fabrication and repairs. This time I repaired a ceramic basin for a fountain. I cleaned and opened the crack. I used fiberglass chop into the fissure. I then overlaid fiberglass cloth over the entire bottom of the basin. Then I poured the epoxy mixture onto the repair area and used a plastic putty knife to work the epoxy in and the bubbles out. Last I vacuum bagged the repair to drive the epoxy deep into the fissure. Your have plenty of time to work with this product so don't rush. Make sure to thoroughly mix the two parts (epoxy and hardener) in equal parts, but don't mix so fast that you create bubbles in the mixture. I probably worked the repair for 15-20 minutes to get to where I wanted things When your finished, leave the repaired object alone for at least 24 hours to harden. After reading some reviews I was worried it may be sticky, it wasn't! The fountain basin is holding well with no leaks detected after several weeks. Don't use this product if you need a quick dry time!

### ⭐⭐⭐⭐⭐ Great product! Very impressed!
*by D***. on April 18, 2026*

This epoxy went above my expectations! Bonding mdf and stainless steel (building a router table). Plenty of working/adjustment time, and a pretty fast cure time! I tried others such as highly rated two ton epoxy (that delaminated in places and separated easily under mild heat). West systems 650 is holding up to mild heat, heavy vibration, pressure, and friction so far. Definitely will restock with a bigger supply when I run out, for any future needs.

### ⭐⭐⭐⭐⭐ Pool filter fixed!
*by D***G on August 30, 2026*

After the bottom of my pool filter cracked all the way across I was dreading buying a new one. Not to mention the one I have is only 4 years old and discontinued. Found a reddit post about how good this stuff works and man was I impressed. Saved pool season for us and is holding up great?

## Frequently Bought Together

- WEST SYSTEM G/flex Epoxy (2- 4oz)
- Coolneon 1/8 inch Brass Rods 1/8 x 12 in, 10 Pcs for Knife Making Knife Handles Pins Stock Knife Scale Solid Round Brass Rod Dowel Rivet Gunsmithing Crafts Modeling Hobby
- G/Flex 655-1 1 oz syringe

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**Shop now:** [https://www.desertcart.co.ke/products/1661556-west-system-g-flex-650-epoxy-adhesive-2-x-4](https://www.desertcart.co.ke/products/1661556-west-system-g-flex-650-epoxy-adhesive-2-x-4)

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-10-23*